A film suction supporting bag feeding device for coil bagging
Patent Information
- Application Number
- CN202522440238.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-18
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-18
AI Technical Summary
Existing coil bagging operations are inefficient, manual operation affects bagging quality, and automated equipment has a complex structure but its operation is not smooth, making it difficult to meet the efficiency and quality requirements of large-scale production.
By employing a plastic bag guiding and opening mechanism, a coil fixing and pushing mechanism, and a plastic bag opening device, combined with components such as inclined guide blocks, suction cup devices, cylinders, and screws, the system achieves automatic positioning, opening, and precise pushing of the coil onto the plastic bag, reducing manual intervention.
It improves the automation level and production efficiency of bagging operations, ensures that the bag opening is evenly opened and the coil is accurately inserted into the bag, reduces the defect rate, and enhances the stability and applicability of the equipment.
Smart Images

Figure CN224929339U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coil bag packaging technology, and in particular to a suction film supporting bag feeding device for coil bag packaging. Background Technology
[0002] Coils are core components widely used in the electrical field. After production, they need to be bagged to achieve dustproof, moisture-proof, impact-proof, and convenient storage and transportation. Currently, there are two prominent problems in coil bagging operations: First, manual bagging accounts for a high proportion. Operators need to manually complete processes such as picking up and putting down plastic bags, opening the bag mouth, and aligning the coil into the bag. This is not only inefficient, but also affected by factors such as operator skill and physical strength, resulting in large fluctuations in bagging quality (such as the consistency of bag mouth opening and the accuracy of coil placement), which can easily interfere with subsequent packaging processes. Second, existing automated equipment has defects. Some equipment has a complex structure but the operation is not smooth, resulting in poor bag mouth opening (such as local wrinkles at the bag mouth or insufficient opening size) or low coil pushing and positioning accuracy. This leads to difficulties in aligning the coil with the bag mouth and a high bagging failure rate, making it difficult to meet the dual requirements of efficiency and quality for large-scale production and restricting the automation upgrade of the coil packaging process. Utility Model Content
[0003] In order to overcome the shortcomings of the prior art, one of the objectives of this utility model is to provide a suction film supporting bag feeding device for coil bag packaging.
[0004] One of the objectives of this utility model is achieved through the following technical solution:
[0005] A suction film feeding device for coil bag packaging includes a frame for supporting and mounting various components, and a plastic bag guiding and opening mechanism, a coil fixing and pushing mechanism, and a plastic bag opening device mounted on the frame. The plastic bag guiding and opening mechanism includes an inclined guide block, a film pressing device, a suction cup device, a dual-axis precision slide cylinder, and a three-axis cylinder. The plastic bag opening device includes a left-right moving screw and left-right opening arms. The inclined guide block guides the plastic bag to a designated position. The film pressing device is positioned above the opening of the plastic bag to fix the opening. The suction cup device is mounted on the dual-axis precision slide. The cylinder is connected to the dual-axis precision slide cylinder and the three-axis cylinder to drive the plastic bag to open upwards; the left and right moving screw is threadedly engaged with the left and right opening arms to drive the left and right opening arms to move forward and open the bag opening; the coil fixing and pushing mechanism includes a feeding plate, a feeding pressure rod, and an automatic pressing and pushing device; the feeding plate and the feeding pressure rod are arranged vertically to fix the coil together; the automatic pressing and pushing device is used to push the coil fixed by the feeding plate and the feeding pressure rod forward to the bottom of the plastic bag, and after the coil is in place, the feeding device is withdrawn so that the coil covered with the plastic bag moves forward with the conveyor belt to the next station.
[0006] As a further improvement to the above technical solution:
[0007] The pressing film device includes a lifting drive and a pressing block. The lifting drive drives the pressing block to move up and down to press or release the opening of the plastic bag.
[0008] The suction cup device includes a mounting frame and multiple vacuum suction cups, which are spaced apart on the mounting frame. The mounting frame is fixedly connected to the slide of the dual-axis precision slide cylinder.
[0009] The left and right expansion arms are provided in two parts, and the two left and right expansion arms respectively cooperate with the forward and reverse threaded sections of the left and right moving screws to achieve synchronous movement in opposite directions or in opposite directions.
[0010] The feeding pressure bar is connected to the frame via a lifting cylinder, which drives the feeding pressure bar to move up or down to get closer to or away from the feeding tray.
[0011] The automatic pressing and pushing device includes a pushing cylinder and a pressing assembly. The output end of the pushing cylinder is connected to the pressing assembly. The pressing assembly is used to press the coil. The pushing cylinder drives the pressing assembly to move the coil toward the plastic bag.
[0012] It also includes an upper horizontal fixing arm, which is fixed to the top of the frame, and the three-axis cylinder is mounted on the upper horizontal fixing arm.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. The device automatically guides the plastic bag into position using an inclined guide block. Then, the pressing film device, suction cup device, dual-axis precision slide cylinder, and three-axis cylinder work together to complete the "fixing-opening" action of the plastic bag. At the same time, the left and right moving screw and the left and right opening arms automatically open the bag opening. The fixing and pushing of the coil into the bag are also automatically completed by the feeding tray, feeding pressure bar, and automatic pressing and pushing device. The whole process does not require a lot of manual intervention, which greatly reduces labor costs. Moreover, the actions are smooth and efficient, which significantly improves the automation level and production efficiency of bagging operation.
[0015] 2. In the plastic bag guiding and spreading mechanism, the inclined guide block ensures the accurate positioning of the plastic bag; the suction cup device and the cylinder work together to evenly pull the plastic bag upward, avoiding localized stress and damage; the left and right moving screw drives the left and right spreading arms to move synchronously, which can spread the bag opening to the size that matches the coil, ensuring that the bag opening is fully and evenly opened.
[0016] 3. In the coil fixing and pushing mechanism, the feeding tray and the feeding pressure rod cooperate to stably clamp the coil and prevent the coil from shifting during the pushing process; the automatic pressing and pushing device accurately pushes the coil to the bottom of the plastic bag, avoiding alignment deviations caused by manual operation, which ultimately greatly improves the bagging quality and reduces the defect rate.
[0017] 4. The connections and transmission relationships of each functional component are clearly defined, ensuring precise and controllable action execution. During long-term continuous operation, the device maintains a stable operating state, reducing equipment downtime due to malfunctions and improving production continuity and equipment durability.
[0018] 5. The key components of the device can be adjusted according to different specifications of coils and plastic bags, which can flexibly adapt to various working conditions and facilitate its application in the production of bagging packaging for different types of coils.
[0019] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of this embodiment;
[0021] Figure 2 This is a schematic diagram of the structure of the horizontal fixing arm of the component in this embodiment;
[0022] Figure 3 This is a structural schematic diagram of the three-axis cylinder component in this embodiment.
[0023] In the diagram: 1. Upper horizontal fixed arm; 2. Left and right moving screw; 3. Left and right spreading arm; 4. Dual-axis precision slide cylinder; 5. Inclined guide block; 6. Pressing film device; 7. Suction cup device; 8. Plastic bag spreading device; 9. Feeding tray; 10. Feeding pressure bar; 11. Automatic pressing and pushing device; 12. Three-axis cylinder. Detailed Implementation
[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0025] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0027] I. Initial State:
[0028] The device uses the frame as the overall support base. In the initial state, all components are in the reset state: the pressing block of the pressing film device 6 is raised and no pressure is applied to the plastic bag; the vacuum suction cup of the suction cup device 7 does not adsorb the plastic bag and is in the initial height and position under the drive of the dual-axis precision slide cylinder 4 and the three-axis cylinder 12; the left and right moving screw 2 is not rotated and the left and right spreading arms 3 are in the initial retracted position; the feeding pressure rod 10 is raised under the drive of the matching lifting cylinder (connected to the frame) and there is space between it and the feeding tray 9 to accommodate the coil; the pushing cylinder of the automatic pressing and pushing device 11 retracts and the whole is in the retracted reset position.
[0029] II. Guiding and securing plastic bags:
[0030] The plastic bag to be used is placed on the inclined surface of the inclined guide block 5. Utilizing the guiding effect of the inclined surface, the plastic bag automatically slides to the designated bagging station. Once the plastic bag reaches the designated position, the lifting drive component (such as a cylinder, which is part of the pressing film device 6) of the pressing film device 6 is activated, driving the pressing block to move downwards. This presses and fixes the upper edge of the plastic bag opening onto the corresponding support structure of the frame, ensuring the stability of the plastic bag opening and providing a foundation for subsequent operations.
[0031] III. Opening and stretching the opening of the plastic bag:
[0032] Opening the bag opening upwards: The suction cup device 7 is activated, and multiple vacuum suction cups on its mounting frame (evenly distributed to balance the suction force) generate negative pressure to adhere to the opening of the plastic bag; subsequently, the three-axis cylinder 12 (mounted on the upper horizontal fixed arm 1, which provides a stable mounting carrier) is activated, driving the dual-axis precision slide cylinder 4 and the suction cup device 7 connected to it to move upwards as a whole; at the same time, the dual-axis precision slide cylinder 4 is finely adjusted along its own axis, so that the plastic bag is smoothly and evenly pulled upwards under the suction of the suction cups, initially opening the bag opening.
[0033] Left and right opening of the bag: As the plastic bag is pulled up, the left and right moving screw 2 is driven to rotate by the matching drive motor. Since the two left and right opening arms 3 are respectively engaged with the positive and negative thread sections of the left and right moving screw 2, when the left and right moving screw 2 rotates, the two left and right opening arms 3 move forward synchronously, insert from the left and right sides of the plastic bag opening and further open the bag opening, so that the opening size of the bag opening matches the shape of the coil to be fitted, ensuring that the coil is smoothly put into the bag.
[0034] IV. Fixing and Pushing the Coil into the Bag
[0035] Coil fixing: The operator places the coil to be bagged on the feeding tray 9. Then the feeding pressure rod 10 is driven by the matching lifting cylinder to descend towards the feeding tray 9, and cooperates with the feeding tray 9 to stably clamp the coil between the two, preventing the coil from shifting / shaking during pushing.
[0036] Coil insertion into the bag: The automatic pressing and pushing device 11 is activated. Its pressing component first presses the coil, which has been fixed by the feeding tray 9 and the feeding pressure rod 10, for the second time (to ensure stable pushing posture). Then, the pushing cylinder of the automatic pressing and pushing device 11 is activated, driving the pressing component to move the coil towards the opened plastic bag, accurately pushing the coil to the bottom of the plastic bag to complete the insertion operation.
[0037] V. Feeding device withdrawal and workstation turnover
[0038] Once the coil reaches the designated position at the bottom of the plastic bag, the push cylinder of the automatic pressing and pushing device 11 drives the pressing assembly to retract and reset; simultaneously, the feeding pressure rod 10 rises under the action of the lifting cylinder, releasing the pressure on the coil, and the entire feeding device exits the bagging area. At this point, the coil covered with the plastic bag moves forward with the conveyor belt below, entering the next packaging station, completing one bagging and feeding cycle.
[0039] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A suction film-supported bag feeding device for coil bag packaging, characterized in that, The system includes a frame for supporting and installing various components, and a plastic bag guiding and opening mechanism, a coil fixing and pushing mechanism, and a plastic bag opening device (8) mounted on the frame. The plastic bag guiding and opening mechanism includes an inclined guide block (5), a pressing film device (6), a suction cup device (7), a dual-axis precision slide cylinder (4), and a three-axis cylinder (12). The plastic bag opening device (8) includes a left and right moving screw (2) and a left and right opening arm (3). The inclined guide block (5) is used to guide the plastic bag to a designated position. The pressing film device (6) is located above the opening of the plastic bag and is used to fix the opening of the plastic bag. The suction cup device (7) is mounted on the dual-axis precision slide cylinder (4), and the dual-axis precision slide cylinder (4) is used to guide the plastic bag to a designated position. The cylinder (4) is connected to the three-axis cylinder (12) to drive the plastic bag to open upwards; the left and right moving screw (2) is threadedly engaged with the left and right opening arms (3) to drive the left and right opening arms (3) to move forward and open the bag opening; the coil fixing and pushing mechanism includes a feeding plate (9), a feeding pressure rod (10), and an automatic pressing and pushing device (11); the feeding plate (9) and the feeding pressure rod (10) are arranged vertically and vertically to fix the coil together; the automatic pressing and pushing device (11) is used to push the coil fixed by the feeding plate (9) and the feeding pressure rod (10) forward to the bottom of the plastic bag, and after the coil is in place, the feeding device is withdrawn so that the coil covered with the plastic bag moves forward with the conveyor belt to the next station.
2. The suction film-supported bag feeding device for coil bag packaging according to claim 1, characterized in that, The pressing film device (6) includes a lifting drive and a pressing block. The lifting drive drives the pressing block to rise and fall to press or release the opening of the plastic bag.
3. The suction film-supported bag feeding device for coil bag packaging according to claim 1, characterized in that, The suction cup device (7) includes a mounting frame and multiple vacuum suction cups, which are spaced apart on the mounting frame. The mounting frame is fixedly connected to the slide of the dual-axis precision slide cylinder (4).
4. The suction film-supported bag feeding device for coil bag packaging according to claim 1, characterized in that, The left and right spreading arms (3) are provided in two parts. The two left and right spreading arms (3) are respectively engaged with the forward and reverse threaded sections of the left and right moving screws (2) to achieve synchronous movement in opposite directions or in opposite directions.
5. The suction film-supported bag feeding device for coil bag packaging according to claim 1, characterized in that, The feeding rod (10) is connected to the frame via a lifting cylinder. The lifting cylinder drives the feeding rod (10) to move up or down to get closer to or away from the feeding tray (9).
6. The suction film-supported bag feeding device for coil bag packaging according to claim 1, characterized in that, The automatic pressing and pushing device (11) includes a pushing cylinder and a pressing assembly. The output end of the pushing cylinder is connected to the pressing assembly. The pressing assembly is used to press the coil. The pushing cylinder drives the pressing assembly to move the coil toward the plastic bag.
7. The suction film-supported bag feeding device for coil bag packaging according to claim 1, characterized in that, It also includes an upper horizontal fixing arm (1), which is fixed to the top of the frame, and the three-axis cylinder (12) is mounted on the upper horizontal fixing arm (1).
